html
  line-height 1
  font-weight 200
  font-family 'PingFang SC','STHeitiSC-Light'



@media (-webkit-min-device-pixel-ratio: 1.5),(min-device-pixel-ratio: 1.5)
  .border-1px
    &::after
      -webkit-transform :scaleY(.7)
      transform :scaleY(.7)

@media (-webkit-min-device-pixel-ratio: 2),(min-device-pixel-ratio: 2)
  .border-1px
    &::after
      -webkit-transform :scaleY(.5)
      transform :scaleY(.5)

.clearfix
  display inline-block
  &::after
    display block
    content ""
    height: 0
    line-height 0
    visibility hidden
    clear both
